Yao-Liang Chung

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Carrier Aggregation (CA) is one of the promising features to support the much wider bandwidth for packet transmissions in Long Term Evolution-Advanced (LTE-A) systems. To the best of our knowledge, works regarding the packet scheduling algorithm in LTE-A systems with the CA mechanism have not thoroughly been investigated yet till now. In this paper, we(More)
Carrier Aggregation (CA) is one of the promising features in Long Term Evolution-Advanced (LTE-A) systems. Till now, works regarding the packet scheduling scheme with CA in different frequency bands have not completely been studied and evaluated yet. Thus, the purpose of this work aims to explore such issue and presents an efficient quantized water-filling(More)
The small-cell base station (SBS) has emerged as a promising technology to improve the network coverage of a macro-cell base station (MBS) for green communications. With the plug-and-play property and without the auto-configuration ability, SBSs are installed unplannedly and unequally. Under such an occasion, it is important to reduce the energy consumption(More)
As implied by the word “packet scheduling”, the shared transmission resource should be intentionally assigned to some users at a given time. The process of assigning users’ packets to appropriate shared resource to achieve some performance guarantee is so-called packet scheduling. It is anticipated that packetized transmissions over links via proper packet(More)
Digital signal processing came long way from wirebased optical fiber communication to wireless-based high rate supported communication models. Radio waves supported long distance satellites, radars to microwave supported mobiles has changed in terms of technology and data rate in last two decades. Mobile communication has become part of daily life and(More)
As the amazingly rapid-growing service demand of various users, the 4th generation (4G) cellular base station (BS) has been expected to embrace the concept of utilizing multiple component carriers (CCs) for transmissions. Consequently, the energy consumption will be increased due to the use of additional CCs. The energy may especially be wasted in non-rush(More)